Hoisting apparatus.



10.722,613. PATENTBD MAR.10,1903.

A.B.NoRR1s. r

HOISTING APPARATUS.

APPLICATION FILED HAY 3,-1902.

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PATBNTED MAR. 1o, 1903.

APPLIATION FILED MAY 3|`1902l 3 SHEETS-SHEET 3,

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".NITED STATES;

PATENT OFFICE.

ALMON E. NORRIS, OF CAMBRIDGE, MASSACHUSETTS.

HOISTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 722,613, dated March10, 1903.

Application iiled May 3, 1902. Serial No. 105,729. (No model.)

To all whom t may concern.:

Be it known that I, ALMON E. NoRRIs, a citizen of the United States,residing at Cambridge, in the county of Middlesex and State ofMassachusetts, have invented an Improvement in Hoisting Apparatus, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like numerals on the drawingslrepresenting like parts.

This invention relates to hoisting apparatus, and especially to what arefamiliarly known as coal-towers. These towers as usually constructed aremounted upon a suitable elevated track and carry a boom, on whichtravels a carrier or trolley, a bucket or other hoisting device beingsuspended from the carrier. Usually the tower carries two engines, whichare located in different places in the housing carried by the tower andone of which operates the bucket and the other of which operates to movethe carrier back and forth upon the track.

It is the object of this invention to provide a novel form of engineconstruction for operating the carrier and the bucket independently andwhich is also constructed to move the tower back and forth upon itstrack and to raise and lower the boom, as desired.

My engine mechanism comprises a horizontally-arranged bucket-hoistingengine, upon the frame of which is a carrier or trolley-operatingengine, and preferably one of said engines will be adapted to operatethe drivinggearing for the tower and also will have connected to itscrank-shaft a winch-head, by means of which the boom may be raised andlowered. By this arrangement of engine I eeonomize room in the towerand, what is more important, am enabled to place all the levers of theengine mechanism within easy reach of a single operator.

In the drawings, Figure 1 shows a coalhandling tower with myimprovements applied thereto. Fig. 2 is an enlarged viewA of a portionof the tower and my improved engine therein, the lower right-hand cornerof said tower being broken away and the supporting-wheel being shown.Fig. 3 is a top plan view of my engine, and Fig. 4 is au end viewthereof.

Referring to Fig. 1, 3 designates a tower of The trolley 6 is moved backand forth upon Y the boom 5 by means of the usual trolleyrope 10. p

The parts thus far described are such as are found in all coal-handlingtowers, and their functions are familiar to those skilled in the art. I

Heretofore it has been customary to provide two independent enginesplaced in different parts of the housing 11 for operating the trolleyand the bucket, respectively, the drum of one of the engines controllingthe trolley-rope 10 and the drums of the other engine havingthe openingand closing ropes 8 and 9 wound thereon. In place of these twoseparately-situated engines I substitute a single structure having atrolley-operatin g engine and a hoisting-engine.

Referring to Figs. 2, 3, and 4, 13 designates longitudinal girders orbeams connected by cross girders 14, said gil-ders forming the framesupporting the bucket-operating or hoisting engine, which operates thetwo drums 15 and 16 for the opening and closing and holding ropes of thebucket, respectively. These drums may be of any usual or suitableconstruction, but preferably will be such as are illustrated in myapplication, Serial No. 34,532, filed October 271900.

The hoisting-engine comprises the two cylinders 17, which are supportedupon the two girders 13 in any suitable way, preferably by means ofbrackets 18, each cylinder havinga piston, the piston-rod of which isconnected through a cross-head 19 with a pitman 20, connected to one ofthe crank-disks 21, fast to the shaft of the hoisting-drum. Thecrossheads 19 move over suitable tracks or guides 22, which aresupported from the girder 13 by means of brackets 23.

The trolley-operating engine, which constitutes the other part of myimproved struc- IOO ture, is carried by the frame of the hoistingengine,and therefore its operating-levers are Within easy reach of the engineerwho operates the hoisting-engine. The frame of the trolley-operatingengine comprises longitu- Aconnected to the usual crank-disk 21' on theshaft of the trolley-drum 30, the said shaft being supported in suitablebearings upon the girders 13. K

The hoisting-engine and the trolley-operating engine are capable ofoperation independently; but by placing one on top of the other, asillustrated, I provide a form of engine which has many advantages whenemployed in combination with a coal-handling tower.

The crank-pin of the crank-disk 21 is secured or connected to a disk onone end of an extension-shaft 31, which carries at its other end awinch-head 33. Said shaft 31 is journaled in bearings 32, which aresupported on the frame of the hoisting-engine and which .are independentfrom the bearings for the trolley-drum 30.

When it is desired to raise or lower the boom 5, the hoisting-rope 34for the boom, which passes over a suitable pulley in the top of thetower, may be wound upon the winchhead and the boom thus swung into thedesired position. This Winch-head may also be employed for moving thetower along the track when used in connection with a tractionropeextending along the track and connected to fixed supports at its ends,for by winding an intermediate portion of the rope about the Winch-headthe operation of the trolleyengine shaft Will give the tower itstraveling movement. I prefer, however, to shift the position of thetower by means of suitable gearing, such as is shown in Figs. 1 and 2,which gearing is operated by the trolley.

In Fig. 2 each wheel 35 is geared by some suitable system ofWorm-gearing to the shaftsection 36, said sections having at theiradjacent ends the bevel-gears 37, which mesh with a bevel-gear 38 uponthe driving-shaft 39, which shaft is supported in suitable bearings inthe tower. The upper end of the shaft 39 has the bevel-gear 40 thereon,which meshes with two bevelgears 41 and 42, looosely mounted upon theshort shaft 43, which forms, in eect, an extension of the trolley-drumshaft and which has at its end a crank-disk, to which the crank-pin onthe crank-disk 21 of the trolley-drum shaft is secured. A clutch member44 is splined to the shaft and may be brought into engagement eitherwith the gear-Wheel 41 or 42, according to the direction of rotationwhich it is desired to give to the driving-shaft. The shaft extension 43is suitably supported in bearings 48, which are independent from thebearings for the'drum 30 and are carried by the frame of thehoisting-engine.

The reversing-gearing 41 42 admits of propelling the tower iu eitherdirection without the necessity of building the trolley-engine as areversing-engine.

In order to permit the drum 30 to be placed on or removed from thecrank-shaft, it willbe necessary of course to make the crank-disks 2lremovable, as usual in this class of devices. 'Ihe shafts 31 and 43,while forming, in effect,extensions of the trolley-drum crankshaft,cannot of course be integral with said latter shaft, for otherwise itwill be impossible to assemble the parts. In practice the said shortshafts 3l and 43 are separate from the trolley-drum shaft and aremounted in separate bearings 32 and 48, respectively, as abovedescribed, and the crank-pins on the crank-disks 21 will be setintosuitable notches or grooves in the cranks at the ends of the shafts31 and 43, respectively.

50 designates the usual steam-generator.

' I have found from practice that a duplex engine constructed as abovedescribed and having provision for not only operating the trolley andthe hoisting-bucket, but also for swinging the boom and propelling thetower on its track, has many advantages over the ordinary constructionin which two entirely separate engines are situated at different partsof the tower.

It will be obvious to those skilled in the art that the details ofconstruction may be varied in many ways without departing from thespirit ofmy invention as expressed in the appended claims.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. In a hoisting apparatus,a hoisting-engine frame, a hoisting-engineand hoisting-drum supported thereby, a trolley -engine frame mounted onthe hoisting-engine frame, and a trolley engine and trolley-operatingdrum supported on the hoisting-engine frame.

2. In a hoisting apparatus, a carrier movable on a track, ahoisting-bucket suspended from the carrier, a hoisting-engine to operatethe bucket, said engine comprising two cylinders, the pistons of whichare operatively connected to opposite ends of a hoisting-drum shaft, anda carrier-operating engine supported on the frame of the hoisting-engineand situated between the cylinders thereof.

3. In a hoisting apparatus, a carrier movable on a track, ahoisting-bucket suspended from the carrier, a hoisting-drum foroperating the bucket, a hoisting-engine for operating said drum, and asecond engine supported by the frame of the hoisting-engine andoperating to move the carrier on its track.

4. In a hoisting apparatus, a carrier movable on a track, ahoisting-bucket suspended from the carrier, a means for operating saidIOS IKO

masia S carrier and bucket indepcndently,said meansl comprising ahoisting-en gine and a trolley-eugine supported by the frame of thehoistingengine.

5. In a hoisting apparatus, a tower movable on a track and supporting aboom, a carrier movable on the boom, a hoisting-bucket suspended fromthe carrier,a horizontal hoisting-engine, a trolley-engine supported onthe frame of the hoisting-engine, and means operated byl thetrolley-engine to propel the tower along its track.

6. In an apparatus of the class described, a tower movable on a track, atrolley or carrier supported by the tower, a hoisting-bucket suspendedfrom the trolley, a hoisting-engine having a horizontal frame, and ahorizontal trolley-engine supported on the frame of the hoisting engine,a shaft connected to and forming in edect an extension of thetrolleyengine crank-shaft, and a winch-head carried by said first-namedshaft.

7. In a hoisting apparatus, a hoisting-engine frame comprisinglongitudinal girders and connecting cross-girders, a hoisting-drumsupported thereby, a cylinder supported by each girder, the pistons ofsaid cylinders having operative connections with the shaft of thehoisting-drum, combined with a trolleyengi-ne frame su pported on saidcross-girders, and a trolley-engine supported by said frame.

8. In a hoisting apparatus, a hoisting-engine frame,a hoisting-enginesupported thereby, a trolley-operating engine carried by the frame ofthe hoisting-engine, and a shaft mounted in bearings supported. on thehoisting-engine frame and independent from the trolley-engine frame,said shaft constituting Vnaled in bearings supported on thehoistingengine frame independently of the trolleyengine frame andconstituting in effect extensions of the trolley-engine crank-shaft, awinch-head on one of said crank-shafts, and means operated by the otherto propel the tower.

10. In a hoisting apparatus, a hoisting-engine, a trolley-enginesupported by the frame `of the hoisting-engine, a bearing carried by thehoisting-engine frame, a shaft in said bearing, said shaft being inalinement with the crank-shaft of the trolley-engine and connectedthereto, and a winch-head carried by said first-named shaft.

ll. In a hoisting apparatus, a trolley-engine comprising two cylinders,the pistons of which are connected to cranks at opposite Vends of thecrank-shaft, a shaft in alinement with the crank-shaft and connectedthereto, and a winch-head upon said shaft.

In testimony whereof I have signed my name to this specication in thepresence of two subscribing witnesses.

ALMON E. N ORRIS.

Witnesses:

LoUIs C. SMITH, GEO. W. GREGORY.

